ciao-controller: Support resizing when creating volume from image
ciao-controller: Support resizing when creating volume from image

This change allows the --size parameter to be used with --source and
--source_type=image to create a ciao volume that is greater in size than
the underlying image. The user is responsible for any filesystem
resizing.

Fixes: #1271

Signed-off-by: Rob Bradford <c49e1dc14cd52e2644816db47123896e0ac79025@intel.com>

01org/ciao,mcastelino/ciao,markdryan/ciao,mcastelino/ciao,rbradford/ciao,kaccardi/ciao,tpepper/ciao,mcastelino/ciao,ciao-project/ciao,01org/ciao,tpepper/ciao,tpepper/ciao,kaccardi/ciao,markdryan/ciao,rbradford/ciao,ciao-project/ciao